Railway-car ventilator



(No Model') E H MGTT 2 sheets-sheet 1,.

RAILWAY GAR VENTILATOR. qNo 2701603.' I Patented Jan. 16,1883s 2 Sheets-Sheet 2.

(No Model.)

E. H. MOTT.

RAILWAY GAR VENTILATOR.

Patented Jan.

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EDWARD H. MOIT, OF CHICAGO, ILLINOIS.

RAI LWAY-CAR VENTI LATO R.

SPECIFICATION forming part of Letters Patent No. avooa'd'atea January 1e, 1883.

Application filed May 15, 188:2. (No model.)

To all whom it 'may concern:

Be it known that I, EDWARD H. Mo'r'r, ot' Chicago, in the county of Oo'ok and State of Illinois, a citizen of the United States, have invented certain new and useful Improvements ,in Railway-Car Ventilation, ot' which the following, in connection with the accompanying drawings, is a specilication.

ln the drawings, Figure 1, Sheet 1, is a verro tical central cross-section ofa railway-car ventilating apparatus embodying my invention,

also showing a detail of the regulating or shifting lever and its locking-bracket. Fig. 2, Sheet l, is a section in the plane ot' the line 00 m of Fig. 1. Fig. 3, Sheet 2, is a side elevation ofthe thimble or false axle. Fig. 4, Sheet 2, is an end view of the said thimble. Fig. 5, Sheet 2, is a vertical central section of the register-box and its valves. Fig. 6, Sheet 2, is a 2O section in the plane ot' theline g/ y of Fig. 5,

showing also the serrated arm and valve-setting lever. Fig. 7, Sheet 2, is an end elevation ofthe fan-chamber and the fan-driving mechanism. Fig. 8, Sheet 2, is a perspective representation of a portion of the shifting 3Q levers.

4o the said Letters Patent.

mechanism. Fig. 9, Sheet 2, is a vertical central section, showing the form and location of the suction-tube shield or jacket, and Fig. 10, Sheet 2, isa detail ot'one ofthe forked shifting- Like letters of reference indicate like parts. A reference to Letters Patent of the United States No. 254,148, dated February 28, 1882, and issued to me for the improvements therein 5 set forth, will aid others to understand the na- I make the thimble D somewhat larger than the axle O and in two parts or horizontal sections, provided with ears au, which are bolted together, as indicated-in Figs. 3 and 7. I apply this thimble to the axle() by means of setscrews a.' a', passing through the thimble and resting against the axle. By this means the thimble D is secured rigidly to the axle or so as tobe rotated therewith, and may be centered, so as to prevent wabbling.

b b are annular ribs, shoulders, or collars on the thimble D, and c care longitudinal ribs or keys thereon.

E E are Wheels, and E E are their hubs. These Wheels are monnted'on the thimble D, and their hubs are interiorly grooved to receivetheribs c c. In othervvords, these Wheels are splined to the thimble D, or are rotated with it, but capable of being movedlaterally thereon. The perimeters of the said Wheels vare also slightlybeveled, as is clearly indicated in Fig. 1. On the hubs E E are the parallel annular ribs or collars d d.

F is a fan-chamber, and F is a rotary fan therein. The wall of this chamber is seated on the thimble D and located between the collars b b. This fan-chamber has two ports, G

and H,respectively. These doors swing in opposite directions and open toward the mouths of the ports. They rest, when closed, against jambs or shoulders e e. To prevent the chamber F from rocking on its seat, it may be connected to the car or truck by means of light chains or guysff, as indicated in Fig. 2; but its connection with other parts of the apparamovement, as will hereinafter be perceived.

1 is a forked tube orduct, entering the chamber F on each side of its center, as shown, and operating similarly to the like tube shown and described in the Letters Patent hereinbefore referred to. This tube or duct and the Wall of the chamber F and its port extensions and its seat may all be cast in one and the same piece,

best.

attached. This axle passes through the c enter of the fan-chamber and' out through the tube or duct I, which is made sufficiently thick to form a suitable bearing for the said axle, as indicated at g g, Fig. l. On the outer ends ot' the axle J are small Wheels or pinions K K, rigidly attached thereto, and arranged for contact with the Wheels E E. The Wheels K K are beveled to correspond to the bevel of the wheels E E.

L is a lubricatingbox, which is pendent from the seat of the fan-case, being removably but may be made in separate parts, if deemed4 and G', in which are hung doors or Valves H tus'will also tend to prevent such a rocking y J is the fan-axle, to which the fan is rigidly IOO connected thereto by means of bolts and nuts. The box L, as shown, is located between the ribs or collars b b, and dishes down a little way below the thimble D to hold asuitable quantity of waste and oil.

L L are lids or doors covering small chambers, M M, outside ofthe fanchamber, and l1. h are openings or channels passing from the chambers M M to that part of thethimble D which is between the shoulders b b, as indicated in Fig. 1.

N N are springs resting on the doors L L. These springs are so bent or formed that the doors will be held closed by them; but the springs will yield to admit ot' the opening of the doors, and when opened the doors will also be held in their open position by the springs,

which will yield, however, to admit ofthe doors being closed. Oil for lubricating purposes is poured into the chambers M M, from whence it will pass through the channels lt h to the thimble D, and thence to the waste in the box L, thus lubricating the parts and preventing` too great friction betweeh the fan-chamber and its seat. y

O is a flexible tube, connecting the forked flue I to the air pipes or ducts entering the car, and 0 0' are such ducts.

lt will be perceived that the operation of the parts thus far described will be as follows: \Vhen the car is in motion the wheels B B will ot' course be rotated. Suppose, for example, that the train is being drawn in such a direction that the wheels B B will be rotated in the direction indicated by the arrow shown thereon in Fig. 2. The wheels B B, being rigid on the axle C, will rotate it, and the thim ble D, being secured to thel said axle, will be rotated therewith. As the wheels E .E are splined or keyed to the thimble D, they also will be rotated therewith, and if they be set to engage the wheels K K the latter wlll also be rotated, thus causing a rotation ot' the axle J and the fan. In Fig. 2 the arrows shown near the fan indicate the direction of its rotation when the wheels B B are rolling in the direction there indicated. A current ot' air will then be forced out through the port Gr, the door H being thus held up or open, as shown, while the door H will be held closed bythe suction thus produced behind it, and the direction in which the car will then move will also to tend to keep the door H closed or against its seat orjamb e. Air will thus be sucked into the fan-chamber to take the place of that expelled, and as the air-ducts entering the fan chamber communicate through the pipes or ducts O and O with the interior ot' the car the air will be drawn out of the car. Other air will enter through the doors, Windows, 0r ventilatoropenings in the ear, and the car will thus be thoroughly ventilated. By driving the small wheels or pinions K K on the fan-axle by means of the larger wheels or drivers, E E, on the ear-wheel axle, l am able to produce more frequent rotations ot' the fan during one rotation of the car-wheels than if the fan were mounted directly on the car-wheel axle, and consequently, there being a greater speed in the movement ofthe fan, it performs its work with better results 5 also, by locating the ports Gr and G in the upper part of the fan-chamber the air is expelled in theopposite direction from that in which the car moves. The oil poured into the chambers M M will luhrieate the parts in the manner described. To stop the movement ot' the fan, move the wheels E E laterally away from contact with the wheels K K.

I will now describe the means I employ for shifting the wheels E E into and out of engagement with the wheels K K.

P is a vertical rod, the lower end ot which is pivoted on a bracket, P', attached to the under part ofthe car.

Q is a bracket applied to the inside of the ear, and arranged a little way above the tloor. In the bracket Q are two holes, it', and R is an arm on the upper end of the rod P. This arm has in it a hole located to register with the holes t' i when the rod P is turned sutilciently in either direction. By placing a head ed pin in the hole in the arm R, when that hole registers with one ot the holes in the bracket Q the arm will be locked temporarily, but may be shifted from the hole to the hole i.

S is an arm near the lower end ofthe rod P.

T is a bell-crank turning on a bracket depending from the under side of the car, and U is an arm or link connecting the arm S to one arm ofthe crank T, the arm U being pivoted to the parts which it connects.

V V are intersecting bent arms or levers, pivoted to each other between their ends.

W is a T-shaped block, to which are pivoted the arms or links A', A, and A". The arm A is also pivoted to one arm ofthe bell-crank T, and the arms A and A are pivoted to the arms or levers V V, all of which is clearly indicated in Fig. S. In the free ends ofthe arms V V are the slots j j.

It will be perceived, on reference to Fig. 8, that it the rod l) be turned on its axis the slotted ends ot'v the arms V V will be either' separated or drawn together, according to the direction in which the said rod is turned, it being understood that the pin is tixed or stationary, which serves to connect the arms V V pivotally between their ends. For example, B is a bracket depending from the under side of the car, and U is a pin passing vertically through it and through the arms V V, between their ends or at their intersection, as at the point r.

I have not attempted to show the bracket to which the crank T is pivoted, as the parts shown in Fig. S may be applied to the car in any suitable way which will permit them to be operated substantially in the manner now described and hereinafter further explained.

D is a cross-bar attached to the top of the fanchamber, and E" E are vertical levers IOO IIC

IIS

emma 3 pivoted between their ends to the ends of the bar D". The upper ends of the levers E" E" enter the slots jj in the arms V V, and their lower ends are forked and straddle the hubs E' E'. These forked ends are shown in detail in Fig. 10; and Z Z are pins or studs extending therefrom into the groove formed by the shoulders d d on the said hubs. It will now beperceived that the levers E" E" will be vibrated when the slotted ends of the arms V V are moved in the manner described, and that vibration will canse the wheels E E to slide upon the thimble D and either engage or disengage the wheels K K, as maybe desired; and this shifting mechanism will be locked in position, as before stated, by means of a pin passed through the lever or arm It intothe hole i or i', as the case may be, according to whether the wheels E E are to be held in or out of engagement with the wheels K K. I deem it best to drive the wheels K K by mere frictional engagement with the wheels E E, and I have therefore shown all these wheels as having beveled peripheries, as indicated in Fig. 1, so that engagement and disengagement may be ei'ected with facility.

F" is a register, and G'l is a chamber below it. chamber G", and I' l'are sliding valves arranged between the said ribs. J' is a rod connecting the said valves. K' is a serrated arm projecting from the part G", and Lll is a bent lever pivoted to an arm, K", also extending from the part G". The rod J' passes through a slot, m, in the end of the short arm of the lever L", as shown in Fig. 6. iBy moving the handle of the lever K', the valvesl' I' may be drawn to a greater or less extent out from the part G", thus permitting a greater or less amount of air being drawn out of the car. An air-spaceis alsothus formed between the val ves, and frost and cold air is thus prevented from following up the air-ducts and entering the car in cold weather and when the ventilator apparatus is not in use.

M' is a sheet-iron jacket surrounding the pipes O' O'- where they enter the car. This jacket is flanged at its upper end for attachment to the under side ot' the car-floor. It is also much larger in diameter than the tube or duct it surrounds, as indicated in Fig. 9, and is drawn in at its lower end to tit upon the said tube. An air-chamber is thus made between the jacket M' and the pipe O', below the bottom ofthe car, which air-chamber will tend to prevent frost from following up the pipe 0'. 1

I do not here intend to restrict myself to friction-gear for driving the fan, as the wheels E E and K K may be cogged or belted, if deemed best. Neither do I here intend to restrict myself to the fan-chamber when seated .on the false axle or thimble D, which is substantially an axle employed only for a subordinate or minor purpose; and it is obvious that the fan-chamber may be seated directly on the axle, although I deem it preferable to employ H" H" are horizontal annular ribs in the" i are hung some way inside of the mouths of the ports G and G', and when closed extend entirely across the passages in which they are hung, thus wholly closing the ports alternately,and preventing the entrance of any air into that side of the fan-chamber. The projecting ends ofthe ports serve as hoods, which collect. the air, and thus serve or aid in keeping either one or the other of the said doors closed at the proper time.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is-

1. The combination, substantially-'as specilied, in a railway-car Ventilating apparatus,of a fan-chamber seated on the thimble or false axle D, mounted on the car-wheel axle, the wheels EE, (one or more,) driven by the said false axle, and one or more wheels, KK, mounted on the fan-axle and arranged for engagement with the wheel or wheels E E, for the purposes specified.

' 2. The combination, substantially as specitied, in a railway-car ventilating apparatus, of a fan mounted on an axle projecting through the side ywalls of the fan-chamber, one or more wheels, K K, mounted on the fan-axle and located thereon outside ofthe said walls,

and one or more sliding and rotary drive# wheels, E E, arranged to engage the wheels v K K, in connection with means for shifting the wheel or wheels E E laterally, for the purposes set forth.

3. The combination, substantially as speci- -ed, in a railway-car ventilating apparatus, ot' the false axle or thimble D, mounted on a carwheel axle smaller than the bore of said thimble, the screws a' a', the fan-chamber F, seated on the false axle or thimble D, the wheels E E, (one or more,) splined to the axle or thimble D, and one or more wheels, K K, mounted on the fan-axle, in connection with means for adjusting or shifting the splined wheels laterally, for the purposes set forth.

4. The combination, substantially as specified, in a railway-car ventilating apparatus, of the fan-chamber F, an oil-box, L M, having therein the oil-ducts h h, and a driving-axle passing through the said box and supporting the said chamber, for the purposes set forth.

5. The combination, substantially as specified, in a railway-car ventilator, of afan-chamber havin g two oppositely-arranged discharging passages or ports, G and G', therein, and

.an outwardly-swinging door hung in each of the said ports or passages, some way back from the outer ends thereof, and wholly closing the said passages when the said doors are closed, the outer ends of the said passages or ports forming hoodsV about the said doors, substantially as and for the purposes specified.

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6. The combination, in a car ventilating apparatus, ofthe fan-chamber F and the chains or gnysj'j, connected to the said chamber and to the truck-frame, substantially as and for the purposes specied.

7. The combination, in a railway-ear ventilator, of a fan contined in a chamber and mounted on a fan-axle projecting from the said chamber, and carrying one or more wheels,

' K K, one or more laterally-sliding Wheels, E

E, for driving the Wheel or Wheels K K, and having grooved hubs, and one or more vibrating forked levers, E E", havingin their forked 9. The combination ot' the Ventilating register or opening F, the chamber G, and. two valves located in the said chamber, and between Which is au air-space, substantially as and for the purposes speciied.

10. The combination of the Ventilating register or opening F, the chamber G, the two valves I I', the connecting-rod J, the serrated arm K', and the bent lever L and its supporting-arm, substantially as and for the purposes specified.

11. The combinatioirof the bent arms V V, having therein the slots jj, and pivoted to each other between their ends, the connecting-arms A and A', pivoted to the arms V V, a pivoted connectingarm for actuating the arms V V, and vibrating levers entering the said slots, substantially as and for the purposes specified.

EDVARD H. M01" Vitnesses F. F. WARNER, H. FRANKFURTER. 

